INDUSTRY COMPONENT

Encoder Scale

High-precision linear or rotary scale used in precision stages for position feedback and motion control.

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Component Specifications

Definition
An encoder scale is a critical component in precision stages that provides accurate position feedback by generating electrical signals corresponding to linear or rotary displacement. It consists of a patterned scale (glass, metal, or polymer) with precise markings read by an encoder head, enabling nanometer-level resolution for applications requiring exact positioning.
Working Principle
Operates on optical, magnetic, or inductive principles. In optical encoders, a light source illuminates the scale's patterned markings, and a photodetector reads the reflected or transmitted light to generate quadrature signals. These signals are processed to determine position, speed, and direction with high accuracy.
Materials
Scale: Glass (e.g., borosilicate) with chromium or gold coating, stainless steel, or polymer (e.g., polycarbonate). Markings: Etched, deposited, or printed with precision up to sub-micron accuracy.
Technical Parameters
  • Length 10 mm to 3 m
  • Accuracy ±0.1 μm to ±5 μm
  • Resolution 1 nm to 10 μm
  • Signal Output TTL, HTL, Sin/Cos, EnDat, BiSS
  • Protection Rating IP40 to IP67
  • Operating Temperature -10°C to 70°C
Standards
ISO 230-2, DIN 19245, IEC 61131-2

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Encoder Scale.

encoder scale linear encoder rotary encoder precision stage position feedback motion control high accuracy industrial automation Encoder Scale in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Precision Stage

A high-precision positioning platform used in wafer probing systems to accurately align and move wafers during electrical testing.

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Engineering Analysis

Risks & Mitigation
  • Contamination affecting signal integrity
  • Mechanical damage from misalignment
  • Thermal expansion causing measurement errors
  • Electrical interference in signal transmission
FMEA Triads
Trigger: Dust or oil accumulation on scale surface
Failure: Signal dropout or reduced accuracy
Mitigation: Use protective covers and regular cleaning with approved solvents
Trigger: Improper mounting or vibration
Failure: Scale cracking or misalignment
Mitigation: Follow torque specifications and use vibration-damping mounts
Trigger: Environmental temperature fluctuations
Failure: Thermal expansion leading to positional errors
Mitigation: Install in temperature-controlled environments or use scales with low thermal expansion coefficients

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.5 μm per meter for linear scales, ±5 arc-seconds for rotary scales
Test Method
Laser interferometry, calibration against reference standards, environmental testing per ISO 230-2

Buyer Feedback

★★★★☆ 4.7 / 5.0 (11 reviews)

"Found 31+ suppliers for Encoder Scale on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Encoder Scale is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Encoder Scale so far."

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Frequently Asked Questions

What is the difference between incremental and absolute encoder scales?

Incremental scales provide relative position data and require a reference point, while absolute scales give unique position values without homing, ensuring position retention after power loss.

How do I maintain an encoder scale?

Keep it clean from dust and contaminants, avoid mechanical shocks, and regularly calibrate with manufacturer guidelines to ensure long-term accuracy.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Enclosure/Housing Encoder Wheel